(I work at a bike retailer. We typically call customers who order bikes online to see if they indeed want the bikes to be built, and to confirm when we can complete the order.)

Me: “Hi there. It’s [My Name] calling from [Company] at [Location], with regards to the order you’ve placed with us for a [frame size] [Bike]. This is just a quick call to confirm that you would like the bike built, and which day you are free to collect it from us.”